A little off topic, but you should know there's a better way than the Yellow Pages to find customers. The ReferenceUSA database will give you all the companies in a given area that fall under the entered NAICS code. Here's a small sample of the information you'll get:

* Business Name

* Address

* Contact Information

* Number of Employees

* Number of PCs

* Location Sales Volume (in dollars)

* Credit Rating Score

* Names of Management and their Titles

* $ spent on accounting

* $ spent on contract labor

* $ spent on advertising

And this information is all free to you thanks to your local public library. It's pretty awesome if you ask me. Here's how to get access to it:

1) Get the NAICS code for the industry you're selling to. This code is used by the government to classify businesses. http://www.census.gov/eos/www/naics/

2) Go to your local library to access the ReferenceUSA online database. You may even be able to do that through the library's website (I can through mine).

3) Click on U.S. Businesses under Available Databases

4) Customer Search

5) Enter the NAICS code in one of the boxes at the bottom of Business Type -> Keyword/SIC/NAICS.